Pure spin currents and associated electrical voltage

Abstract

We present a generalize Landauer-Büttiker transport theory for multi-terminal spin transport in presence of spin-orbit interaction. It is pointed out that the presence of spin-orbit interaction results in {\it equilibrium spin currents}, since in presence of spin-orbit interaction spin is not a conserved quantitative. Further we illustrate the theory by applying it to a three terminal Y-shaped conductor. It is shown that when one of the terminal is a potential probe, there exist {\it nonequilibrium pure spin currents} without a n accompanying charge current. It is shown that this pure spin currents causes a voltage drop which can be measured if the potential probe is ferromagnetic.

4 pages, 3 figures

References in corpus (5)

• Spin Hall effect
• Finite-element theory of transport in ferromagnet-normal metal systems
• The Rashba Hamiltonian and electron transport
• Magnetic Scanning Tunneling Microscopy with a Two-Terminal Non-Magnetic Tip: Quantitative Results
• Comparison between the two models of dephasing in mesoscopic systems

Cited by in corpus (68)

• Universal Intrinsic Spin-Hall Effect
• Quantum rings as electron spin beam splitters
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Spin-Hall Effect in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling and Disorder
• Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
• Rashba effect and magnetic field in quantum wires
• Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
• Topological Anderson insulator phenomena
• The dependence of topological Anderson insulator on the type of disorder
• Mesoscopic Stern-Gerlach spin filter by nonuniform spin-orbit interaction
• A controllable valley polarization in Graphene
• Spin Hall Current Driven by Quantum Interferences in Mesoscopic Rashba Rings
• Spin Polarization at Semiconductor Point Contacts in Absence of Magnetic Field
• Equilibrium spin currents and magnetoelectric effect in magnetic nanostructures
• Spin Dynamics and Spin Transport
• Tunable pure spin currents in a triple-quantum-dot ring
• Spin resolved Hall effect driven by spin-orbit coupling
• A prohibition of equilibrium spin currents in multi-terminal ballistic devices
• Topological Hall and Spin Hall Effects in Disordered Skyrmionic Textures
• Spin selectivity through time-reversal symmetric helical junctions
• One-dimensional quantum channel in a graphene line defect
• Externally controlled high degree of spin polarization and spin inversion in a conducting junction: Two new approaches
• Spin-Seebeck effect on the surface of topological insulator due to nonequilibrium spin-polarization parallel to the direction of thermally driven electronic transport
• Enhancement of polarization in a spin-orbit coupling quantum wire with a constriction
• Spin transport through a quantum network: Effects of Rashba spin orbit interaction and Aharonov-Bohm flux
• Aharonov-Casher and spin Hall effects in two-dimensional mesoscopic ring structures with strong spin-orbit interaction
• Effects of spin-orbit interaction on superconductor-ferromagnet heterostructures: spontaneous electric and spin surface currents
• Interference induced preparation of spinpolarized electrons in a three-terminal quantum ring
• Magnetic Quantum Wire as a Spin Filter: An Exact Study
• Spin-orbit interaction induced spin selective transmission through a multi-terminal mesoscopic ring
• Spin-selective transmission through a single-stranded magnetic helix
• A group-theoretic approach to the origin of chirality-induced spin selectivity in non-magnetic molecular junctions
• Zeeman ratchets: pure spin current generation in mesoscopic conductors with non-uniform magnetic fields
• Nature of Spin Hall Effect in a finite Ballistic Two-Dimensional System with Rashba and Dresselhaus spin-orbit interaction
• Spin filtering in all-electrical three-terminal interferometers
• Spin current and shot noise from a quantum dot coupled to a quantized cavity field
• Transverse electric current induced by optically injected spin current in cross-shaped InGaAs/InAlAs system
• Curvature effect on spin polarization in a three-terminal geometry in presence of Rashba spin-orbit interaction
• Enhanced spin Hall effect by tuning antidot potential: Proposal for a spin filter
• Spin-Hall effect in two-dimensional mesoscopic hole systems
• Equilibrium edge spin currents in two-dimensional electron systems with spin-orbit interaction
• Spin interferometry with electrons in nanostructures: A road to spintronic devices
• Spin Hall effect in a Kagome lattice driven by Rashba spin-orbit interaction
• Two-dimensional electron scattering in regions of nonuniform spin-orbit coupling
• Detection of spin polarization with a side coupled quantum dot
• Bistable Spin Currents from Quantum Dots Embedded in a Microcavity
• Generation of fully spin-polarized currents in three-terminal graphene-based transistors
• Characteristics of persistent spin current components in a quasi-periodic Fibonacci ring with spin-orbit interactions: Prediction of spin-orbit coupling and on-site energy
• Highly Efficient Induction of Spin Polarization by Circularly-Polarized Electromagnetic Waves in the Rashba Spin-Orbit Systems
• Spin-current induced mechanical torque in a chiral molecular junction
• Mesoscopic fluctuations of spin currents
• Local equilibrium charge and spin currents in two-dimensional topological systems
• Some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems
• Detection of spin polarization utilizing singlet and triplet states in a single-lead quantum dot
• Externally controlled selective spin transfer through a two-terminal bridge setup
• Spin Current in Junctions composed of Multi-band Superconductors with a Spin-density Wave
• Current induced local spin polarization due to the spin-orbit coupling in a two dimensional narrow strip
• Enhanced spin Hall effect in semiconductor heterostructures with artificial potential
• Generation of spin-polarized current using multi-terminated quantum dot with spin-orbit interaction
• Symmetry-driven Intrinsic Nonlinear Pure Spin Hall Effect
• Quantum bistability and spin current shot noise of a single quantum dot coupled to an optical microcavity
• Spin-current-induced charge current
• Spin injection from topological insulator tunnel-coupled to metallic leads
• Spin Hall conductance in a Y-shaped junction device in presence of tunable spin-orbit coupling
• Generation and Measurement of Non Equilibrium Spin Currents in Two Terminal Systems
• Thermoelectric unipolar spin battery in a suspended carbon nanotube
• Effect of boundary scattering on spin-hall effect
• Interplay of Rashba spin orbit coupling and disorder in the conductance properties of a four terminal junction device